Venous thromboembolism (VTE, includes both venous thrombosis and pulmonary embolism) is a frequent complication among patients with cancer. However, there is surprisingly little data regarding the incidence and time course of VTE and the risk of recurrent VTE among patients with a specific malignancy defined by histologic type and stage. In addition, it is not clear to what degree age, sex, ethnicity, stage, histologic type, and treatment predict the development of VTE. This information is important because there is preliminary data suggesting that use of anticoagulants, such as warfarin or low molecular weight heparin, may be beneficial in the primary prevention of VTE among cancer patients.
The specific aims of this application are: 1) to define a cohort of patients diagnosed with one of the ten most frequent cancers in California and to identify hospital-reported cases of VTE in this cohort by linking the California Cancer Registry with the California Patient Discharge Data Set; 2) to determine and compare the incidence and time course of incident VTE after diagnosis of the most frequent cancers in California; 3) to determine demographic, treatment- and disease-related risk factors associated with developing VTE after diagnosis of the most frequent cancers in California; 4) to determine predictors of death within two years of diagnosis of each of the ten most frequent cancers in California; and 5) to determine the incidence of recurrent VTE and re-hospitalization for bleeding within a six-month period after diagnosis of incident VTE and to compare this to the incidence in age- and sex-matched patients with VTE who do not have cancer. The hypothesis are: 1) a cohort of cancer patients who develop VTE can be identified through the California Cancer Registry and the California Patient Discharge Data Set; 2) there is a significant variation in the incidence and time course of incident VTE among the ten most frequent cancer diagnoses, and among the different stages of each of these malignancies; 3) for each type of cancer, there is ethnic variation in the incidence of VTE, and factors such as age, stage, and therapy, will influence the observed rates of VTE in cancer patients; 4) for all malignancies, the development of VTE within 2 years of diagnosis is an independent predictor of death within 2 years of diagnosis; and 5) patients with cancer who develop VTE have a higher incidence of both recurrent VTE and severe bleeding complications related to anticoagulation therapy compared to age- and sex-matched patients with VTE who do not have cancer. We propose to take advantage of our ability to merge the extensive and mature California Cancer Registry with the linked California Patient Discharge Data Set in order to examine these questions. Results of this research will provide important data regarding the natural history of VTE in cancer patients and serve as the basis for designing prospective studies aimed at primary prevention of VTE in high-risk groups.

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Small Research Grants (R03)
Project #
1R03CA099527-01
Application #
6588217
Study Section
Special Emphasis Panel (ZCA1-SRRB-Q (O1))
Program Officer
Nayfield, Susan G
Project Start
2002-09-30
Project End
2004-08-31
Budget Start
2002-09-30
Budget End
2003-08-31
Support Year
1
Fiscal Year
2002
Total Cost
$74,250
Indirect Cost
Name
University of California Davis
Department
Internal Medicine/Medicine
Type
Schools of Medicine
DUNS #
094878337
City
Davis
State
CA
Country
United States
Zip Code
95618
Mahajan, Anjlee; Wun, Ted; Chew, Helen et al. (2014) Lymphoma and venous thromboembolism: influence on mortality. Thromb Res 133 Suppl 2:S23-8
Sandhu, Rasanamar; Pan, Chong-Xian; Wun, Ted et al. (2010) The incidence of venous thromboembolism and its effect on survival among patients with primary bladder cancer. Cancer 116:2596-603
Ku, Grace H; White, Richard H; Chew, Helen K et al. (2009) Venous thromboembolism in patients with acute leukemia: incidence, risk factors, and effect on survival. Blood 113:3911-7
White, Richard H; Keenan, Craig R (2009) Effects of race and ethnicity on the incidence of venous thromboembolism. Thromb Res 123 Suppl 4:S11-7
Chew, H K; Davies, A M; Wun, T et al. (2008) The incidence of venous thromboembolism among patients with primary lung cancer. J Thromb Haemost 6:601-8
Chew, Helen K; Wun, Theodore; Harvey, Danielle J et al. (2007) Incidence of venous thromboembolism and the impact on survival in breast cancer patients. J Clin Oncol 25:70-6
Semrad, Thomas J; O'Donnell, Robert; Wun, Ted et al. (2007) Epidemiology of venous thromboembolism in 9489 patients with malignant glioma. J Neurosurg 106:601-8
Chew, Helen K; Wun, Theodore; Harvey, Danielle et al. (2006) Incidence of venous thromboembolism and its effect on survival among patients with common cancers. Arch Intern Med 166:458-64
Alcalay, Allison; Wun, Ted; Khatri, Vijay et al. (2006) Venous thromboembolism in patients with colorectal cancer: incidence and effect on survival. J Clin Oncol 24:1112-8
White, Richard H; Chew, Helen K; Zhou, Hong et al. (2005) Incidence of venous thromboembolism in the year before the diagnosis of cancer in 528,693 adults. Arch Intern Med 165:1782-7